CHST to CST Time Converter

Convert Chamorro Standard Time (CHST) to Central Standard Time (CST). Both time zones are shown live below; current offset between them is 15 hours behind.

Hagåtña · Chamorro Standard Time
01:18:52
Thursday, May 14, 2026
GMT+10 · UTC+10:00
Chicago · Central Standard Time
10:18:52
Wednesday, May 13, 2026
CDT · UTC-05:00

Convert a specific time

From: CHST (Hagåtña)
To: CST (Chicago)
--:--

Daylight Saving status right now

CHST (Chamorro Standard Time)
Observes DST
No
CST (Central Standard Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-11-01
Offset shift
UTC-05:00 → UTC-06:00

Heads up: CST observes DST while CHST does not. The 15-hour difference shown above will shift by one hour when CST starts or ends DST.

When can CHST and CST meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
CHST
CST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Hagåtña (CHST). Each row shows the local working-hours state in that zone for the same moment in time.
No overlap during strict 9-5 working hours; some flexibility needed.
If both sides are willing to extend to 8am-7pm, the available window is 08:00–09:00 CHST (17:00–18:00 CST).

Hour-by-hour CHST to CST conversion table

CHST time (Hagåtña)CST time (Chicago)Status
00:00 Thu09:00 WedCST working
01:00 Thu10:00 WedCST working
02:00 Thu11:00 WedCST working
03:00 Thu12:00 WedCST working
04:00 Thu13:00 WedCST working
05:00 Thu14:00 WedCST working
06:00 Thu15:00 WedCST working
07:00 Thu16:00 WedCST working
08:00 Thu17:00 WedOff-hours both sides
09:00 Thu18:00 WedCHST working
10:00 Thu19:00 WedCHST working
11:00 Thu20:00 WedCHST working
12:00 Thu21:00 WedCHST working
13:00 Thu22:00 WedCHST working
14:00 Thu23:00 WedCHST working
15:00 Thu00:00 ThuCHST working
16:00 Thu01:00 ThuCHST working
17:00 Thu02:00 ThuOff-hours both sides
18:00 Thu03:00 ThuOff-hours both sides
19:00 Thu04:00 ThuOff-hours both sides
20:00 Thu05:00 ThuOff-hours both sides
21:00 Thu06:00 ThuOff-hours both sides
22:00 Thu07:00 ThuOff-hours both sides
23:00 Thu08:00 ThuOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Chamorro Standard Time (CHST)
IANA identifier
Pacific/Guam
Current UTC offset
UTC+10:00
Current abbreviation
GMT+10
Major cities in this zone
Hagåtña
Central Standard Time (CST)
IANA identifier
America/Chicago
Current UTC offset
UTC-05:00
Current abbreviation
CDT
Major cities in this zone
ChicagoHoustonDallasAustinNew Orleans

Sun today in Hagåtña and Chicago

Chicago
Sunrise
05:33
Sunset
20:02
Solar noon
12:48
Daylight
14h 28m

Related converters

CST to CHST (reverse)CHST to ESTCHST to PSTCHST to GMTCHST to UTCCHST to CETEST to CSTPST to CSTGMT to CSTUTC to CSTCET to CST
Looking for local time? See time in Hagåtña or time in Chicago.

Frequently asked questions

What is the time difference between CHST and CST right now?+
CST (Central Standard Time) is currently 15 hours behind CHST (Chamorro Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does CHST or CST observe daylight saving time?+
CHST: does not observe daylight saving time. CST: observes daylight saving time.
When is the best time to schedule a meeting between CHST and CST?+
Standard 9-5 hours do not overlap. Extending to 8am-7pm gives a window of 08:00–09:00 CHST (17:00–18:00 CST).
What time is it in Chicago when it is 12:00 noon in Hagåtña?+
When it is 12:00 Thu in Hagåtña (CHST), it is 21:00 Wed in Chicago (CST).
Which IANA time zone identifiers are used for CHST and CST?+
CHST maps to "Pacific/Guam" in the IANA database. CST maps to "America/Chicago". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Hagåtña ahead of or behind Chicago?+
Whether Hagåtña (CHST) is ahead of or behind Chicago (CST) depends on the current UTC offsets. Right now CST is 15 hours behind CHST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for CHST and CST?+
CHST is UTC+10:00 (GMT+10) and CST is UTC-05:00 (CDT). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both CHST and CST?+
Not during a strict 9am-5pm window. If both sides flex to 8am-7pm, the available meeting window between CHST and CST is 08:00–09:00 CHST.